Source Crayola® CSS3 CSS4
#1f2336
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#51556b
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey
#c3c8d1
 
#cdc5c2
silver
#c0c0c0
silver
#c0c0c0
silver
#989caa
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#757b88
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey